N-nitroso compounds: evidence for their presence in airborne particles

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Science  09 Sep 1983:
Vol. 221, Issue 4615, pp. 1045-1047
DOI: 10.1126/science.6879203


Chemical, infrared, and thermal energy analyses have provided evidence for the presence of the N-nitroso functional group in extracts of airborne particles. The total molar N-nitroso concentrations in New York City air are equivalent to the total concentrations of polycyclic aromatic hydrocarbons. Since 90 percent of the N-nitroso compounds that have been tested are carcinogens, the newly discovered but untested materials may represent a significant environmental hazard.